Added dhcpcheck before slaves bootstrap
Added dhcpcheck before slaves bootstrap

Change-Id: I5755f390b2ed4fb52ba3dfd954bf1c8ab552743c

teselkin/fuel-main,huntxu/fuel-main,ddepaoli3/fuel-main-dev,Fiware/ops.Fuel-main-dev,ddepaoli3/fuel-main-dev,zhaochao/fuel-main,eayunstack/fuel-main,zhaochao/fuel-main,SergK/fuel-main,zhaochao/fuel-main,huntxu/fuel-main,SmartInfrastructures/fuel-main-dev,huntxu/fuel-main,teselkin/fuel-main,dancn/fuel-main-dev,SergK/fuel-main,Fiware/ops.Fuel-main-dev,teselkin/fuel-main,eayunstack/fuel-main,AnselZhangGit/fuel-main,AnselZhangGit/fuel-main,SmartInfrastructures/fuel-main-dev,stackforge/fuel-main,zhaochao/fuel-main,stackforge/fuel-main,Fiware/ops.Fuel-main-dev,teselkin/fuel-main,eayunstack/fuel-main,ddepaoli3/fuel-main-dev,ddepaoli3/fuel-main-dev,zhaochao/fuel-main,dancn/fuel-main-dev,SmartInfrastructures/fuel-main-dev,dancn/fuel-main-dev,dancn/fuel-main-dev,SergK/fuel-main,Fiware/ops.Fuel-main-dev,stackforge/fuel-main,AnselZhangGit/fuel-main,AnselZhangGit/fuel-main,SmartInfrastructures/fuel-main-dev